Improvement in steam-heater



I. P. HALLBERG.

STEAM HEATER.

Patented Apr. 5, 1870.

dnited ttttw 13mm militia.

Letters Patent No. 101,612, dated April 5, 1870.

IMPROVEMENT IN STEAM-HEATER.

The Schedule referred to in these Letters Patent and making part of th same.

To all whom it may concern.-

Be it known that I, FREDnIoK Pou'rus HALLBERG, of Gottenburg, in the Kingdom of Sweden, have invented a new and useful Improvement on Hot-Air Furnaces, of which the following is a full, clear, and exact description, reference being had to the accompanying drawing making part of this specification. on which- Figure 1 is a ground plan;

Figure 2 is a side view;

Figure 3 is a front view; and

Figure 4 is a rear view of said furnace.

The nature of my invention consists in arranging the dilferent parts of a hot-air furnace in such a manner as to make it convenient for fitting together of the differentparts, whereby a great deal of labor and material is saved.

Desm'iptt'on.

Fig. 2 shows a side view of my furnace where the surrounding brick wall is supposed to be removed.

a is a rectangular part or section of the steam-boiler. Thereetangular part a is bolted steam-tight together to anumber of sections, 1) b b, which all have arched or half-circular tops.

The furnace is contained inside the sections a and b b b.

A circular shell, 0, containing the tubes from the furnace, connects the forward end b b b to the rearend (l d. The latter is constructed similar to the sections 12 b b, and ends in a rectangular section, 0, similar to the one described at a.

f is the furnace-door, and

g is the ash-door. w

h is the smoke-stack communicating with the chimney h, and

'i is a cold-air inlet-pipe communicating with the valve '5'.

Above the steam-boiler a b c d e are the radiators k k k andl l l.

The steam generated in the boiler is communicated to the radiators by means of the steam-pipes L and 1', from the respective rectangular front and rear parts a and e.

The radiators are fitted so as to slant to one side, as shown in figs. 3 and 4, for the purpose of draining from them the condensing water that flows oft through the small pipes m m into the pipe 11, and finally carried back to the boilerat- 0, in the lower end of the rectangular part c.

A- space, 1), above the radiators contains the air to be heated, that passes off through the pipes q q q q q to the rooms that are to be warmed.

The lines 0 1' show the surrounding walls that tions, in a surrounding wall; and also that very short connecting-pipes, It and Z, are needed to connect the whole.

The projecting rectangular parts a and e render it very easy to make the connection between the boiler and the radiators.

, The boiler is supplied with steam-gauges, watergauges, safety-valves, inlet and blow-oh valves, as usual.

Above the radiators is k 7t and Z l l I also make provision for attaching another set of radiators, in a similar way, if needed.

The steam from the boiler passes through the pipes Land Z to the radiators, and passes off, with the condensed water,-through the pipes m m a, and enters the'boiler again at 0.

Having thus described the nature and operation of my invention,

I wish to secure by Letters Patent, and claim- 1. A steam-boiler consisting of rectangular parts a and e in each end, in combination with the arched parts I) b b and (l d, together with the central circular part c, as set forth.

2. In combination with the above, the connections k and 1', between the rectangular boiler-ends and the radiators, as fully set forth and described.

February 25, 1870.

' FREDRIOK 1. HAL'LBERG. \Vitnesses:

' ALVAN ANnmtN,

.l. M. Sourrmvrok. 

